Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

London, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
325-475 A LONDTXXARS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-475 0 BWWDTXXATMD  903C ONVOY, LLC - TX 961   2021-02-03   
325-475 1 BWWDTXXATMD  903C ONVOY, LLC - TX 961   2021-02-03   
325-475 2 LONDTXXARS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-475 3 BWWDTXXARMD  624H ONVOY SPECTRUM, LLC 961   2023-04-27   
325-475 4 BWWDTXXATMD  903C ONVOY, LLC - TX 961   2019-03-14   
325-475 6   515J IP HORIZON LLC 961   2024-01-03   
325-475 7 SANGTXXAXHX  508J CENTURYLINK COMMUNICATIONS, LLC 961   2016-07-28   
325-475 8   515J IP HORIZON LLC 961   2024-01-03   
325-475 9   515J IP HORIZON LLC 961   2022-04-01   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.